JP2006147071A - Optical disk recording and playback apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical disk recording and playback apparatus in which an index can be registered without being conscious of work that a user inputs an index during playback. <P>SOLUTION: In an optical disk recording and playback apparatus 1 in which compressed animation image is recorded in an optical disk and an animation image position desired by a user is recorded as an index position when the animation image is played, the apparatus has an index position setting means 8 wherein an initial frame in shifting to a normal playback mode is made the index position after frame feeding or temporary stop is performed during playback, a storing means 9 storing the positioned index position in the storage part, an index information read-out means 11 reading out the stored index position, and an access means 7 in which jumping to the read out index position is performed. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an optical disk recording / reproducing apparatus for reproducing an optical disk by setting an index at a desired position by a user.

Some optical disc recording / reproducing apparatuses have a function of registering an arbitrary reproduction position in an index by a user operation and easily accessing the position where the index is placed later. (For example, refer to Patent Document 1.)
Patent Document 1 discloses a control signal reading device that reads the total recording time, the number of chapters, and a time code recorded on a disc, an index memory that stores information on an index that has already been input, and the control signal reading device. When the total recording time, chapter number, and time code information read in step 1 is matched with the information already recorded by comparing with the index information in the index memory, the disc number is recognized. A microcomputer that recognizes a new disk and assigns a disk number that has not been used in the past to the disk, and a remote controller that sends a command for reading the time code from the microcomputer to the control signal reader and stores the time code in the index memory And the user can It becomes possible to register index, time to find a desired scene of his has been described can be simplified.
Japanese Patent Laid-Open No. 6-275056

  However, in order to register an index, it is necessary for the user to perform a special playback operation such as fast-forwarding or frame-by-frame access, to access an arbitrary playback position, and at least to perform a remote control operation for the user to be aware of the index. is there. Searching for an arbitrary playback position by a user is an operation that is performed on a daily basis, but it is generally easy to forget the task of hitting this index.

  Therefore, the present invention has been proposed in view of the above-described problems, and provides an optical disc recording / reproducing apparatus capable of registering an index at a position desired by a user without being aware of the work of hitting the index during reproduction. The purpose is to do.

According to a first aspect of the present invention, when the compressed moving image information is recorded in the data area of the optical disc, and the recorded compressed moving image information is read and reproduced, the user's desired moving image information position In the optical disc recording / reproducing apparatus for recording the index information including the index position related to the optical disc with the index position as the index position, after performing frame advance or pause in units of one frame during the reproduction, the normal reproduction mode The index position setting means (screen display monitoring unit 8) that sets the first frame when moving to the index position as the index position, and the storage means (index index) that stores the index information positioned by the index position setting means in the storage unit An information registration unit 9) and the index information stored in the storage unit. The index information reading means (index information acquisition section 11) to be issued, and the access means (navigation control section 7) for jumping to the position specified by the index information read by the index information reading means. An optical disc recording / reproducing apparatus is provided.
The second invention records the compressed moving image information in the data area of the optical disk, and reads out the reproduced moving image information recorded and reproduces the recorded moving image information position as the index position. In the optical disk recording / reproducing apparatus for recording the index information including the index position, the first frame when the frame is moved or paused in units of one frame during the reproduction and then the normal reproduction mode is entered. As index position setting means (screen display monitoring section 8) and index information recording means (index information registration section) for recording the index position positioned by the index position setting means in the management area of the optical disc. 9, disk writing / reading unit 15) and the index information Index information reading means for reading the index information recorded by the recording means (index information acquisition unit 11, disk writing / reading unit 15), and jump to the position specified by the index information read by the index information reading means And an access means (navigation control unit 7) for providing an optical disc recording / reproducing apparatus.
In a third invention, the index position is a position indicated by a time from the start position of the compressed moving image and a file offset value indicating the location of the image data in a file including the image at the index position. An optical disc recording / reproducing apparatus according to claim 1 or 2 is provided.

  According to the present invention, the index position setting means for setting the index position to the first frame when moving to the normal playback mode after frame advance or pause in units of one frame during the playback. A storage unit that stores the index information positioned by the index position setting unit in a storage unit; an index information reading unit that reads the index information stored in the storage unit; and a read unit that reads the index information. And an access means for jumping to the position designated by the index information, the index can be registered without being aware of the work of hitting the index during reproduction.

Hereinafter, an optical disk recording / reproducing apparatus according to an embodiment of the present invention will be described in detail with reference to FIGS.
FIG. 1 is a diagram showing an optical disc recording / reproducing apparatus according to an embodiment of the present invention. 2A and 2B are flowcharts of index processing in the present invention, where FIG. 2A shows index registration processing and FIG. 2B shows index access processing. FIG. 3 is a diagram showing a modification of the optical disc recording / reproducing apparatus according to the embodiment of the present invention. 4A and 4B are flowcharts of index processing according to a modification of the present invention, where FIG. 4A shows index registration processing and FIG. 4B shows index access processing.

  As shown in FIG. 1, an optical disc recording / reproducing apparatus 1 according to an embodiment of the present invention includes a read-only optical disc 2 such as a DVD-ROM on which a moving image has already been recorded, and the user operates the optical disc recording / reproducing apparatus. A remote control 3 to be performed, an optical disk drive 4 capable of accessing and recording an arbitrary position on the optical disk, a drive processing unit 5 for controlling the optical disk drive to perform recording and reproduction, and a compressed video / audio output from the drive processing unit An MPEG decoder 6 is provided for performing signal expansion processing and outputting a video / audio signal to an external display device. Further, the optical disc recording / reproducing apparatus monitors a frame number of an image currently displayed on the screen and sets an index position, a screen display monitoring unit 8, an optical disc identifying unit 12 for identifying an optical disc, and index information including the index position. Index information storage unit 10 configured by a nonvolatile memory for storing and storing the collected index list, index information registration unit 9 for registering the index in association with the identified optical disc, index information acquisition unit 11 for reading the index, and navigation It is comprised from the control part 7. FIG. The navigation control unit 7 is in charge of system control of the optical disk recording / reproducing apparatus, monitors the user's remote control operation, and performs all system control including index processing of the optical disk recording / reproducing apparatus.

Next, an index automatic registration process performed when the reproduction mode is the index automatic registration mode will be described with reference to the flowchart of FIG.
When the optical disk is inserted into the optical disk recording / reproducing apparatus, the optical disk identification unit 12 identifies the optical disk using information such as a title, and whether or not the index list of the identified optical disk is stored in the index information storage unit 10 If there is, the index list of the optical disc is used, and if not, an index list associated with the optical disc is newly created and used (step S1).
Next, when the user operates the remote controller, the navigation control unit 7 determines whether the operation is paused after the optical disk recording / playback apparatus has been subjected to variable speed playback such as fast forward or frame advance or normal playback, and the subsequent operation is normal playback. If it is the normal reproduction, this is detected as an index information registration request (step S2). Then, the screen display monitoring unit 8 that monitors the image from the MPEG decoder 6 sets the first frame of the reproduced image at the time of the normal reproduction as a position for indexing (step S3).
Then, the index position is registered in an index list associated with the optical disc (step S4). The index list lists, for each optical disc, index information including information for specifying the optical disc and information indicating the indexed frame position. The frame position indicates the screen frame number counted from the head of the title of the compressed image stream file at the frame position and the number of bytes from the head of the compressed image stream file at the stream data corresponding to the frame position. It is expressed by the file offset information shown.
As index information, an image thumbnail at the index position can be provided.

Next, an access operation using an index will be described with reference to the flowchart of FIG.
When the optical disk is inserted into the optical disk recording / reproducing apparatus, the optical disk identification unit 12 identifies the optical disk as in the index automatic registration process described above, and whether the index list corresponding to the optical disk is stored in the index information storage unit 10. If there is, the index list is used (step S5). If there is no index access, no index access is performed. When the user operates the remote controller to designate and access an index, the navigation control unit 7 detects this (step S6), and the index information acquisition unit 11 reads from the index list in the index information storage unit 10 as follows. The frame position where the designated index is struck is acquired (step S7), and the navigation control unit 7 accesses the acquired frame position (step S8), and performs playback or frame advance according to the next remote control operation. Perform playback operation.
Thus, for example, when the user performs a playback skip operation with the remote controller, the index that is closest to the currently played frame can be searched and accessed by referring to the index list.

As described above, according to the embodiment of the present invention, since the index can be registered at the position where frame advance or pause is performed, the user can simply pause at an image of interest during playback, for example, An index can be registered without being conscious of the task of hitting the index.
These index information is registered and recorded together with the optical disc information in the nonvolatile memory of the optical disc recording / reproducing apparatus. Therefore, when the optical disc is reproduced and viewed later, the index access can be performed using the index information.

Next, a modification when a writable optical disk such as a DVD-RW or DVD-RAM is used will be described with reference to FIG.
In this modification, the index list is recorded in a management information file on the optical disc. For this reason, since the correspondence between the index list and the optical disc is always maintained, it is not necessary to identify the optical disc, and the index information in the index list only includes information indicating the frame position where the index is placed. Good. However, it is necessary to read the index list from the optical disk when the optical disk is inserted and to write the optical disk when the optical disk is ejected.

  The configuration of the optical disc recording / reproducing apparatus 13 shown in the modification of the present invention is such that the optical disc identification unit 12 is removed from the configuration of the optical disc recording / reproducing apparatus 1 and a disc writing / reading unit 17 is provided. Further, the index information processed by the index information registration unit 14, the index information storage unit 15, and the index information acquisition unit 16 does not include information for specifying the optical disc. The rest is the same as the optical disc recording / reproducing apparatus 1.

Next, the operation of the modification shown in FIGS. 4A and 4B will be described in comparison with FIGS. 2A and 2B of the embodiment of the present invention.
At the time of index registration, in a modification, the index list is read from the optical disk to the index information storage unit 15 and used when the optical disk is inserted (step S9). When the optical disk is ejected, the index list registered in the index information storage unit 15 is written into the management information unit on the optical disk (step S13). The other steps are the same as those in FIG.
Also, when accessing the index, in a modification, the index list is read from the optical disk to the index information storage unit 15 and used when the optical disk is inserted (step S14). The other steps are the same as those in FIG.

  Also in the modified example of the embodiment of the present invention, the same effect as the embodiment of the present invention can be obtained.

  In the above-described embodiments, the high-density recording type optical disk has been described as the recording medium. However, the present invention is a storage medium other than the optical disk, such as a magnetic disk or other storage capable of physically high-density recording. It can also be applied to media.

It is a figure which shows the optical disk recording / reproducing apparatus which concerns on embodiment of this invention. In the flowchart of the index processing in the present invention, (A) shows index registration processing, and (B) shows index access processing. It is a figure which shows the modification of the optical disk recording / reproducing apparatus which concerns on embodiment of this invention. In the flowchart of the index process in the modification of this invention, (A) shows an index registration process, (B) shows an index access process.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,13 Optical disk recording / reproducing apparatus, 2 Optical disk, 3 Remote control, 4 Optical disk drive, 5 Drive processing part, 6 MPEG decoder, 7 Navigation control part, 8 Screen display monitoring part, 9 Index information registration part, 10, 14 Index information storage , 11 Index information acquisition unit, 12 Optical disc identification unit, 15 Disc writing / reading unit

Claims (3)

When the compressed moving image information is recorded in the data area of the optical disc, and the recorded compressed moving image information is read and reproduced, the position of the moving image information desired by the user is used as an index position, In an optical disc recording / reproducing apparatus for recording index information including the index position,
Index position setting means for setting the index position to the first frame when moving to the normal playback mode after frame advance or pause in units of one frame during the playback,
Storage means for storing the index information positioned by the index position setting means in a storage unit;
The index information reading means for reading the index information stored in the storage unit;
Access means for jumping to a position specified by the index information read by the index information reading means;
An optical disc recording / reproducing apparatus comprising: When the compressed moving image information is recorded in the data area of the optical disc, and the recorded compressed moving image information is read and reproduced, the user's desired moving image information position is set as the index position, and the index position is set. In an optical disc recording / reproducing apparatus for recording index information including:
Index position setting means for setting the index position to the first frame when moving to the normal playback mode after frame advance or pause in units of one frame during the playback,
Index information recording means for recording the index position positioned by the index position setting means in a management area of the optical disc;
Index information reading means for reading the index information recorded by the index information recording means;
Access means for jumping to a position specified by the index information read by the index information reading means;
An optical disc recording / reproducing apparatus comprising: The index position is a position indicated by a time from a start position of the compressed moving image and a file offset value indicating a location of the image data in a file including the image at the index position. Item 3. The optical disc recording / reproducing apparatus according to Item 1 or 2.

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